Steps
1. Peel and boil the potato until tender, then let it cool.
2. Mash the potato in a bowl and mix in the chopped onion, chili powder, and salt.
3. Shape the mixture into small balls or patties.
4. Heat butter in a pan over medium heat and fry the patties until golden brown on both sides.
5. In a separate bowl, mix ketchup and mayonnaise to create the dipping sauce.
6. Serve the potato bites hot with the creamy sauce on the side, garnished with fresh coriander if desired.